Taverner and Swales — On Point Pelee Birds. 89 



June 1 respectively. None were seen May 1-4, 1908. In the fall 

 they seem to occur in greatest abundance about the first week of 

 September. In 1905 they were common from September 4 to 13, 

 after which their numbers suddenly dropped off to nothing. The 

 next year they were present in limited luimbers the first three days 

 of the month, and on our return visit from the 15th to 22d, several 

 to fifteen were noted each day, the latter number being reached but 

 once, the 20th. As late as October 14, ten were noted. They had 

 not put in an appearance on the Point in 1907 up to the time of oiu- 

 departure September 6. A valuable field mark for this species is 

 the white spot at the base of the folded primaries, that is present to 

 a more or less marked degree in nearly all phnnages. This is one 

 of the few warblers of which the fall juveniles are almost indis- 

 tinguishable in plumage from the spring adults. 



165. *Dendroica coronata. — Myrtle Warbler. 



May 14, 1905, this species was common on the Point and, though 

 we failed to notice any May 20-21, 1906, one was seen each day of 

 May 30 and June 1, 1907. This late date, however, means very lit- 

 tle from a migratlonal standpoint for, as has been before mentioned, 

 it was an abnormal spring and many birds remained long after their 

 usual time for departure had passed. May 1-3, 1908, it was fairly 

 common on all three days spent on the Point. In 1905 but one in- 

 dividual was observed October 29, as they had not yet arrived up 

 to the time of our departure on the former trip, September 15. Thi; 

 following year the first fall migrant was noted September 20, and 

 more the next two succeeding days, and were quite numerous Oc- 

 tober 14 and 15. None were detected the fall of 1907 to the date of 

 our leaving, September 6. 



166. *Dendroica maculosa. — Magnolia Warbler. 



But two seen May 2, 1908, but common on all other May trips. 

 Six were noted as late as June 1, 1907. September, 1905, it was fluc- 

 tuatingly connuon from the 4th to 15th, common the first three days 

 of the month in 1906, but very variable in numbers from the 16th 

 to 21st, when it only reached numbers to be desiguated common the 

 20th. Several were noted each day from August 27th to our de- 

 parture September 6, 1907. 



167. *Dcn(lroica cwnilca. — Cerulean Warbler. 



Although the Cerulean Warbler is a common migrant, and not un- 

 common breeder on the adjacent Michigan side of the international 

 boundary, it was far from numerous at any season when we have 

 been at the Point. In the spring we have seen but a few individuals, 

 May 14, 1905, and 20, 1906. It is an early migrant in fall and usually 

 passes through this latitude the latter part of August. September 



